Jeep Cherokee 2000 Service Manual - page 76
(10) Install the pinion washer and a new nut on
the pinion gear. Tighten the nut to 217 N·m (160 ft.
lbs.).
CAUTION: Never
loosen
pinion
gear
nut
to
decrease pinion gear bearing rotating torque and
never exceed specified preload rotating torque.
(11) Check bearing preload torque with an inch
pound torque wrench (Fig. 49). The torque necessary
to rotate the pinion gear should be:
• Original Bearings—1 to 2 N·m (10 to 20 in. lbs.).
• New Bearings—1.5 to 4 N·m (15 to 35 in. lbs.).
(12) If
rotating
torque
is
above
the
desired
amount, remove the pinion yoke and increase the
preload shim pack thickness. Increasing the shim
pack thickness 0.025 mm (0.001 in.) will decrease the
rotating torque approximately 0.9 N·m (8 in. lbs.).
(13) Tighten pinion shaft nut in 6.8 N·m (5 ft. lbs.)
increments until the maximum tightening or desired
rotating torque is reached. Maximum tightening
torque is 271 N·m (200 ft.lbs.).
Fig. 47 Pinion Preload Shims–Typical
1 – PINION PRELOAD SHIMS
2 – FRONT BEARING CUP
3 – SLINGER
4 – PINION YOKE
5 – WASHER
6 – PINION NUT
7 – PINION OIL SEAL
8 – FRONT BEARING CONE
Fig. 48 Pinion Yoke Installation
1 – PINION YOKE
2 – AXLE HOUSING
3 - 40
TUBE, 181, AND 186 FBI AXLE
XJ
REMOVAL AND INSTALLATION (Continued)